SYSTEMS OF EQUATIONS Cramer's Rule (Page 1 of 6)

Let's solve the system of equations 2x-y+2z = -8; x+2y-3z = 9; 3x+11y-12z = 43 using Cramer's Rule. The coefficient matrix for this system is matrix{row1: 2 -1 2; row2: 1 2 -3; row3: 3 11 -12}. First enter this matrix into the calculator as matrix [A] using the matrix editor.

 MATRX key. Left arrow key. 1: menu selection. ** Calculator screen image.

(We have deleted any previously created matrices.)
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